August 09, 1913

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Features

The Truth About the Iceberg Peril, Multi-gun Turrets and more

Another Contest for the "America's" Cup

The Return to Yachts of Moderate Dimensions and Wholesome Type

A New Baseball Indicator

By Guy E. Mitchell

Some Novel Electrical Devices

By Frank C. Perkins

A French Cycle Racing-car

By S. P. McMinn

Millions for Naval Armor--the Remedy, The Electrical Control Boards for the Panama Canal Locks and more

By Louis E. Browne

A Remarkable Review of Building Methods Old and New

The Leipzig Building and Trades Exposition

By Robert Grimshaw

The War Against Field Mice in France

Arsenic, barium carbonate, and bisulphide of car-bon have been used with more or less success in de-strolling field mice and similar pests. The method now most favored consists in infecting mice with a contagious disease. In the following article the Danysz virus discovered at the Pasteur Institute of Paris and applied for this purpose is described.-- Editor.

By Jacques Boyer

Fire, Load and Water Test of Floor Arches

An Interesting Test in Which the Qualities of Gypsum, Terra Cotta Tile, and Reinforced Concrete Were Tested for Several Hours in Fierce Heat

The Industrial Need of Technically Trained Men--VI

A Study of Incomes of Technically Trained Men

By David Edgar Rice

Departments

Letters

Correspondance - August 9, 1913

Departments

Recently Patented Inventions - August 9, 1913

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